Abstract

Data on interactions in the ZrO2 - Fe2O3 system stabilized by oxides in a high-temperature form at 1750°C are obtained. Of all zirconia-based compositions, only magnesium-zirconium cubic solid solution enters into an active reaction with Fe2O3 to yield MgFe2O4. The solid solutions formed by ZrO2 with oxides of yttrium, neodymium, and calcium resist degradation by attack from Fe2O3; part of iron oxide undergoes dissolution in cubic ZrO2.